Bicycle frame



FIG. 1 is a top, rear, and right side perspective view of a bicycle frame showing our new design in accordance to a first embodiment;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a top, rear, and right side perspective view of a bicycle frame showing our new design in accordance to a second embodiment;

FIG. 9 is a right side elevation view thereof;

FIG. 10 is a left side elevation view thereof;

FIG. 11 is a front elevation view thereof;

FIG. 12 is a rear elevation view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the bicycle frame that form no part of the claimed design. 

CLAIM We claim the ornamental design for a bicycle frame, as shown and described. 